đ§ Route 53 TXT Record Splitter
Automatically format long DNS TXT records for AWS Route 53
đ§ Related Tools
Diagnose SPF, DKIM, DMARC, and Blacklist issues for any domain.
Split long DKIM or SPF records for AWS Route 53's 255 character limit.
About Route 53 TXT Record Splitting
AWS Route 53 has a limitation where TXT record strings cannot exceed 255 characters. This is particularly problematic for DKIM records, long SPF records, and other DNS authentication mechanisms that often generate keys longer than this limit.
Why Do I Need to Split TXT Records?
When you try to add a long TXT record (like a DKIM public key) to Route 53, you'll encounter an error if the value exceeds 255 characters. The solution is to split the record into multiple quoted strings, which DNS servers will automatically concatenate when serving the record.
Common Use Cases
- DKIM Records: Email authentication keys (usually starting with v=DKIM1;p=) are frequently longer than 255 characters
- SPF Records: Complex SPF policies with multiple includes can exceed the limit
- DMARC Records: Detailed reporting configurations may require splitting
- Domain Verification: Some verification tokens from various services can be quite long
How It Works
Our tool automatically splits your TXT record into multiple strings, each under 255 characters, and
formats them with proper quoting for Route 53. The format uses space-separated quoted strings like this:
"string1" "string2" "string3"
Verified Email Deliverability
This tool is provided by OSH (Outsource House), specialists in email deliverability consulting and Google Workspace administration. We help businesses ensure their emails reach the inbox, not the spam folder.
Need help with your email authentication setup? Visit our domain checker tool for comprehensive email deliverability analysis including SPF, DKIM, DMARC, and more.
Privacy Policy
Data Collection: This Route 53 TXT Record Splitter tool is a client-side application. When you paste a TXT record and submit it for splitting, the data is processed entirely in your browser. We do not transmit, store, or log your TXT record data on our servers.
Data Usage: Your TXT record input is used solely to generate the properly formatted output for AWS Route 53. No data is saved, analysed, or shared. Each time you refresh the page, any data you've entered is cleared. We do not collect or log the content of TXT records you process.
Server-Side Processing: This tool operates entirely in your browser. No external API calls are made to process your TXT records. Your data never leaves your device.
Analytics: We may collect anonymized usage statistics to understand how the tool is used and improve its functionality. This does not include any details about the TXT records you process.
Contact: For privacy enquiries or questions about this tool, please contact us at osh.co.za/contact.